"Long Brand" QQ-908/QQ-900 adhesive is used in food packaging material PET, NY, LDPE, CPP plastic film substrate composite processing two liquid reaction type adhesive for high temperature cooking. With 1. Resistant to cooking, boiling resistance and excellent resistance to the contents of the composite material can be 121 degree / 45min high-temperature cooking. 2. Glue good frost resistance, with excellent coating properties. 3. Peel strength, excellent stability, strength after cooking before cooking more than growth.

 

Product Index:

Help:
  1. Using the ratio
      Recommended ratio: QQ-908 (main agent): QQ-900 (curing agent) = 5:1 or prepared according to specific circumstances.
  2. Glue concentration and preparation work
      Recommended concentration is 25 ~ 35%, when using this glue used ethyl acetate solvent. Concentration of the preparation work table:

Solvent formula:
      Solvent = [main dose × solid content (%) + curing dose × working concentration of solid content (%)]/ set - (main curing dose + dose)
  3. Dilution: the main agent in the solvent ethyl acetate added to Stir, Stir after adding curing agent, you can use.
  4. Viscosity: each with plastic should be measured using the viscosity cup and record its viscosity, to prevent the preparation of an error.
  5. Coating weight: dry lamination process, the solids content of 20% to 35%, adhesive weight 3g/m2 ~ 5g/m2, please click the above data suitable adjustment to the depth of cable roller. General Wu Nai contents of, the coating weight can be less, but requires resistance to the contents, or requires some broken bags of strength, to increase the coating weight. Cooking-resistant packaging composite coating should be in 4g/m2 ~ 5g/m2.
  6. Bonding: The first film (coated adhesive film) and the second film of adhesive temperature is controlled at 50 ℃ ~ 100 ℃, the range. Transparent thin film composite temperature affect vulnerable to heat, should at 50 ℃ ~ 60 ℃, others are 70 ℃ ~ 80 ℃ for composite.
  7. Drying: In order to promote adhesive film coated with solvent evaporation, shall films by drying plant. At this time, the complete evaporation of the solvent to promote air flow, temperature, wind speed and shall be paid. Such as the drying device is divided into three phases, should be sent in the film into exported to export plus the 50 ℃ ~ 60 ℃ ~ 70 ℃ ~ 80 ℃ temperature gradient.
  8. Ripening: This product is not processed immediately in the composite should be bonded with their property, it needs to be sent to curing room for the reaction, 50 ℃ ~ 60 ℃ in temperature, aging 48 to 72 hours before to achieve the desired adhesive strength.

Notes:
  1. Residual glue should be 12 hours (20 ~ 25 ℃) used within, in principle, to allow re-use, if excessive residue diluted kept in the shadows closed the next day job as a diluent, after another few preparation of glue in the incorporation of new, high quality requirements and to avoid the use of composite products, such as the discovery of whitish, translucent or viscosity increase, they can not continue to use
  2. By bonding the substrate to be clean and dry, no dust, oil, complex film over the surface tension of not less than 40 because, if we achieve 42 dyne is desirable, polyethylene, polypropylene film corona treatment must be so that the surface tension of 40 dyne above and immediately treated coating composite was the best film, nylon to prevent moisture. Such as printing ink with polyurethane, then the curing compound is recommended to increase dosage. Main agent: curing agent = 5:1.1 ~ 1.3 choose to use.
  3. Open the package, you must run out in the short term, particularly easy to absorb moisture deterioration curing agent, should pay attention to dry, used up immediately sealed.
  4. Production of composite packaging materials, the coating amount after drying of residual solvents in the following control 10mg/m2
  5. This adhesive application does not contain alcohol, amine, and not higher than 300PPM ethyl acetate as diluent water use during non-water, alcohol, amine and other impurities mixed with working solution.
  6. The type of film additives, glue concentration, network roll depth, line number on the bond strength of composite membranes affect the use of a choice before, or advice Changbu.
  7. Network cable roller to regularly use my factory is specialized in cable roller cleaning agent.
  8. Do not mix this product with other adhesive used. If necessary, please consult factory technical department.
  9. The technical information in the operating conditions, complex process, use, performance data by our factory technical department tests come, the practical application, because the users of raw materials sources, equipment, processing conditions and packaging structure will be different , recommended that users start to test or to the factory technical department consultation.
  10. I plant both in words, writing or testing provided in good faith the views or proposals from, but not as a guarantee, which also involves the ownership of a third party. Users supply the products of my factory has the responsibility to conduct tests to verify the suitability of their equipment, process conditions and end use of composite products.